Guillaume Bailleul
SkillsWorkHomelabBlogThoughtsContact

Search the site

Loading search…

  • Page

    Skills

    Skills in Go, Python, React, React Native, distributed systems and applied AI. Open to permanent roles and freelance projects.

  • Page

    Work

    Case studies covering Go and Python backends, distributed systems, React and React Native products, applied AI, and legacy modernization.

  • Page

    Homelab

    Personal projects in agent-driven audio modelling, generative audio and connected devices: Greybound, Soma26 and Robine Wake.

  • Page

    Blog

    Thoughts on web development and technology

  • Page

    Thoughts

    Book reviews, concepts, and reflections on computing history and craft.

  • Page

    Contact

    Email me about a permanent role or freelance project in Go, Python, React, React Native, applied AI, or software architecture.

Projects, articles, thoughts, skills, and résumé.

↑ ↓ to browse · Enter to open · Esc to close

Production experience

Selected Work

A selection of missions, the problems they solved, and what was achieved.

2024 – 2026

Silae HR Suite – Applied AI for Payroll Support

Designed an agentic workflow to explain payroll items and accelerate the handling of customer support requests.

PythonFastAPILangGraphMCP

Outcome80% reduction in the backlog of requests for payroll-item explanations

Explore the project →
2016 – 2019

Mailjet SendAPI v3.1 – Distributed Go API

Architected and implemented a Go email delivery API capable of handling millions of requests.

GoAPIDistributed SystemsGCP

OutcomeDistributed API delivered to handle millions of email requests

Explore the project →
2019 – 2021

Pagily – Web and Mobile Document Platform

Led the technical direction and delivery of a document management platform spanning backend services, web, mobile, and scanning equipment.

ReactNext.jsReact Native.NET

OutcomeEnd-to-end architecture and delivery across backend services, web, mobile, and document processing

Explore the project →
2016 – 2019

ADEO – Multi-Business-Unit Data Platform

Designed a strategic platform enabling business units to define their data schemas and share only explicitly authorized information.

Node.jsMongoDBAPIAuthorization

OutcomeStrategic MVP delivered on schedule by a multi-vendor project team

Explore the project →

Looking for similar results?

Permanent role or freelance project: let's talk about your team and how I can contribute.

Get in touch

© 2026 Guillaume Bailleul

LinkedInGitHubEmail